脐橙黄酮体外的抗氧化作用

摘要

The in vitro reactive oxygen species scavenging activity of navel orange (Citrus sinensis Osbeck) flavonoids was studied by determining the autoxidation rate of pyrogallol after different concentration of navel oranges flavonoids was added. Vitamin C and 50% alcohol was used as compare. The results revealed no significant difference (P>0.05) between the antioxidation of 1 mg/mL vitamin C and 3.01 mg/mL navel oranges flavonoids; however, the antioxidation of navel oranges flavonoids was very significantly different (P<0.01) from that of 50% ethanol and CK, indicating that navel oranges flavonoids had strong in vitro ability in scavenging reactive oxygen species.%加入不同浓度的脐橙(Citrus sinensis Osbeck)黄酮,研究脐橙黄酮体外清除活性氧自由基邻苯三酚的作用,并与维生素C、体积分数为50％的乙醇的作用进行比较.结果表明,脐橙黄酮浓度为3.01 mg/mL时对邻苯三酚的清除率与1 mg/mL维生素C相比无显著差异(P＞0.05),与体积分数为50％的乙醇及去离子水相比差异极显著(P＜0.01).脐橙黄酮具有较强地清除体外活性氧自由基的作用.